<!DOCTYPE html>
<html xmlns:th="http://www.thymeleaf.org" lang="en">
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>
    <form th:action="@{/page/saveuser}" th:method="post">
    <p >用户名:<input name="username" type="text"/></p>
    <p >年龄:<input name="age" type="number"/></p>
        <p>邮箱:<input name="email" type="email"></p>
        <button type="submit" >保存</button>
    </form>
</body>
</html>